201021120196 has 36 divisors (see below), whose sum is σ = 389787947472. Its totient is φ = 90621314784.

The previous prime is 201021120149. The next prime is 201021120203. The reversal of 201021120196 is 691021120102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201021120196.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3428706 + ... + 3486841.

Almost surely, 2^201021120196 is an apocalyptic number.

201021120196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

201021120196 is a deficient number, since it is larger than the sum of its proper divisors (188766827276).

201021120196 is a wasteful number, since it uses less digits than its factorization.

201021120196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915620 (or 6915605 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 201021120196 its reverse (691021120102), we get a palindrome (892042240298).

The spelling of 201021120196 in words is "two hundred one billion, twenty-one million, one hundred twenty thousand, one hundred ninety-six".